동심원 등가풍속을 이용한 대기안정도에 따른 풍력자원 변화에 관한 연구
Accounting for the Atmospheric Stability in Wind Resource Variations and Its Impacts on the Power Generation by Concentric Equivalent Wind Speed
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초록
The power production using hub height wind speed tends to be overestimated than actual power production. It is because the hub height wind speed cannot represent vertical wind shear and blade tip loss that aerodynamics characteristic on the wind turbine. The commercial CFD model WindSim is used to compare and analyze each power production. A classification of atmospheric stability is accomplished by Monin-Obukhov length. The concentric wind speed constantly represents low value than horizontal equivalent wind speed or hub height wind speed, and also relevant to power production. The difference between hub height wind speed and concentric equivalent wind speed is higher in nighttime than daytime. Under the strongly convective state, power production is lower than under the stable state, especially using the concentric equivalent wind speed. Using the concentric equivalent wind speed considering vertical wind shear and blade tip loss is well estimated to decide suitable area for constructing wind farm.
Abstract
The power production using hub height wind speed tends to be overestimated than actual power production. It is because the hub height wind speed cannot represent vertical wind shear and blade tip loss that aerodynamics characteristic on the wind turbine. The commercial CFD model WindSim is used to compare and analyze each power production. A classification of atmospheric stability is accomplished by Monin-Obukhov length. The concentric wind speed constantly represents low value than horizontal equivalent wind speed or hub height wind speed, and also relevant to power production. The difference between hub height wind speed and concentric equivalent wind speed is higher in nighttime than daytime. Under the strongly convective state, power production is lower than under the stable state, especially using the concentric equivalent wind speed. Using the concentric equivalent wind speed considering vertical wind shear and blade tip loss is well estimated to decide suitable area for constructing wind farm.
참고문헌 (28)
- Oh, M. J., "Variability Estimation of Wind Power Fluctuation in South Korea Based on Electricity Supply and Demand Plan", M, pp.2014
- Wagner R., "Accounting for the speed shear in wind turbine power performance measurement", 14(8), pp.993~1004 (2011)
- Dennis L. Elliot, "Effects of wind shear and turbulence on wind turbine power curves", European Community Wind Energy (1990)
- Antoniou I., "Influence of wind characteristics on turbine performance", European Wind Energy Conference and Exhibition (EWEA) (2007)
- Wagner R., "Rotor equivalent wind speed for power curve measurement comparative exercise for IEA Wind Annex 32", Journal of Physics : Conference Series, 524, pp.012108~ (2014)
- McCosker J, "Design and Optimization of a Small Wind Turbine", M, pp.2012
- 유정우, "타워 관측 자료를 이용한 연안 대기 경계층 내 바람 자원의 연직 변동 특성", 한국대기환경학회지, 28(6), pp.632~643 (2012), 한국대기환경학회[DOI]
- Antoniou I., "Influence of turbulence, wind shear and low-level jets on the power curve and the AEP of a wind turbine", European Wind Energy (2009)
- Wharton S, "Assessing atmospheric stability and the impacts on wind characteristics at an onshore wind farm", Wind Energy, 15(4), pp.525~546 (2012)
- Wharton S., "Atmospheric stability affects wind turbine power collection", Environ. Res. Lett, 7, pp.2~8 (2012)
- Rareshide E, "Effects of complex wind regimes on turbine performance", Scientific proceedings, American Wind Energy Association WINDPOWER Conference (2009)
- European wind turbines testing procedure developments. Task 1 :Measurement method to verify wind turbine performance characteristics, "Hunter R", ~, pp.RISOE R-1209 (EN) (2001)
- The Influence of Wind Shear in Wind Turbine Power Estimation, "Honrubia A.", ~ (2010)
- Sumner J., "Influence of atmospheric stability on wind turbine power performance curves", Journal of Solar Energy Engineering, 128, pp.531~538 (2006)
- Rienecker M. R., "MERRA:NASA’s Modern-Era Retrospective Analysis for Research and Applications", Journal of Climate, 24(14) (2011)
- Lileo S., "Long-term correction of wind measurements, State of the are, guidelines and future work", Elforsk report, 13, pp.18~ (2013)
- Evaluation of Site-Specific Wind Conditions Version 1, "MEASNET", 8~12 (2009)
- 우재균, "Wind Speed Prediction in Complex Terrain Using a Commercial CFD Code.", 한국태양에너지학회 논문집, 31(6), pp.8~22 (2011), 한국태양에너지학회
- 김진한, "MERRA 재해석 자료를 이용한 복잡지형 내 풍력발전단지연간에너지발전량 예측", 한국태양에너지학회 논문집, 34(2), pp.82~90 (2014), 한국태양에너지학회
- WindSim Validation Study –CFD validation in Complex terrain, "Tristan Wallbank", 1~7 (2008)
- Park, K. S, "Prediction of Annual Energy Production for Wind Farm using Computational Fluid Dynamics and Various Wake Models, M. Dissertation", M., Dept. of Aerospace Engineering, pp.2015
- 황지욱, "기상데이터와 웨이블 파라메타를 이용한 풍력에너지밀도분포 비교", 한국태양에너지학회 논문집, 30(2), pp.54~64 (2010), 한국태양에너지학회
- Schubel P. J., "Wind Turbine Blade Design", Energies, 5(9), pp.3425~3449 (2012)
- Wharton S, "Atmospheric Stability Impacts on Power Curves of Tall Wind Turbines – An Analysis of a West Coast North American Wind Farm", Environ. Res. Lett, 7 (2010)
- Monin A. S., "Basic laws of turbulent mixing in the ground layer of the atmosphere", Tr. Akad. Nauk SSSR Geoph. Inst, 151, pp.163~187 (1954)
- Venora A, "Monin-Obukhov Similarity Theory Applied to Offshore Wind Data_Validation of Models to Estimate the Offshore Wind Speed Profile in the North Sea", Master, pp.2009
- 고정우, "제주 북동부 지역의 지형과 대기변수에 따른 AEP계산의 정확성에 대한 연구", 한국측량학회지, 30(3), pp.295~303 (2012), 한국측량학회[DOI]
- Jeong, S. Y., "Study on the offshore Construction and Operation Characteristic of Large Scale Wind Turbines in the Domestic Typhoon Condition", M, pp.2015